Title:
UNDERGROUND PIPE
Document Type and Number:
Japanese Patent JP2016070598
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an underground pipe capable of suppressing attachment of dirt and mold to an inner peripheral face, and being easily cleaned when humidity of a hollow portion is increased due to intake of outside air, and impurities and saprophyte are taken into the hollow portion with the outside air.SOLUTION: An underground pipe includes a pipe body 11 at least partially buried in the ground, and capable of exchanging heat between heat of the outside air taken into a hollow portion and ground heat, and a contact angle to water droplet of an inner peripheral face, of the pipe body 11 is 0-50 degrees. The pipe body 11 is preferably composed of a resin having hydrophilic property. Further a plurality of ribs 16 are preferably formed in a state of radially projecting from an outer peripheral face 13 of the pipe body 11 at intervals in a longitudinal direction of the pipe body 11.SELECTED DRAWING: Figure 2
Inventors:
OKABE MASASHI
TSUTAO TOMOSHIGE
SUGANO SHOHEI
ABIKO MASAKAZU
TSUTAO TOMOSHIGE
SUGANO SHOHEI
ABIKO MASAKAZU
Application Number:
JP2014200864A
Publication Date:
May 09, 2016
Filing Date:
September 30, 2014
Export Citation:
Assignee:
SEKISUI CHEMICAL CO LTD
SEKISUI KAGAKU HOKKAIDO KK
SEKISUI KAGAKU HOKKAIDO KK
International Classes:
F24J3/08; F16L1/024
Domestic Patent References:
| JP2007333360A | 2007-12-27 | |||
| JPS6021891U | 1985-02-15 | |||
| JP2004270764A | 2004-09-30 | |||
| JPS5921429U | 1984-02-09 |
Attorney, Agent or Firm:
Yoshifumi Saeki
Ryuichiro Mori
Makiko Otsuki
Toyoyama Ogi
Ryuichiro Mori
Makiko Otsuki
Toyoyama Ogi